Patents by Inventor Ghirmay Seyoum

Ghirmay Seyoum has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Publication number: 20210032502
    Abstract: Brittle acrylic films are made from impact-modified polyalkyl (meth)acrylate and are useful in forgery prevention labels containing the same. The films can be advantageously prepared by extrusion and, depending on the desired purpose, can be designed to be translucent or entirely non-transparent e.g. white. Ideally, the brittle acrylic films and the forgery prevention labels have no intended break points such as slits, perforation etc.
    Type: Application
    Filed: August 22, 2018
    Publication date: February 4, 2021
    Applicant: Röhm GmbH
    Inventors: Ghirmay SEYOUM, Markus Parusel, Detlef Birth, Jürgen Pachmann, Günther Dickhaut, Girolamo Musci, Claude Guénanten, Haroldo Rodrigues
  • Patent number: 10629098
    Abstract: The present invention relates to peelproof security films made from a poly(meth)acrylate, more particularly from a polymethyl methacrylate, which comprises at most 10 wt % of or no impact modifiers. These films are highly transparent, have good printability qualities, and can be applied without intended break points. The peelproof security films can therefore find use in particular in documents, such as passports, for example, in security labels, such as road tax badges, for example, or for product theft prevention, or as price tags. These security labels are further distinguished by good weathering stability and in particular by especially good UV stability. The present invention relates more particularly to the use of these security labels, which have a thickness of not more than 2 mm, comprise at least 80 wt % of polymethyl methacrylate and contain no impact modification particles.
    Type: Grant
    Filed: March 23, 2016
    Date of Patent: April 21, 2020
    Assignee: Roehm GmbH
    Inventors: Ghirmay Seyoum, Haroldo Rodrigues, Guenther Dickhaut, Juergen Pachmann, Detlef Birth
  • Patent number: 10611130
    Abstract: An extruded matt foil has at least one layer in which glass beads are uniformly distributed in a polymer matrix with at least one fluoropolymer and at least one further layer. The matt foil has a particularly high UV-resistance, a high weathering resistance and excellent mechanical properties. Therefore, the foil is highly suitable for surface-protection of materials such as polyvinyl chloride (PVC) and for use in high-pressure laminates (HPLs).
    Type: Grant
    Filed: December 5, 2017
    Date of Patent: April 7, 2020
    Assignee: Röhm GmbH
    Inventors: Claude Guénanten, Helmut Háring, Detlef Birth, Max Conrad, Eric Reinheimer, Günther Dickhaut, Ghirmay Seyoum, Wangelis Karampougioukis, Girolamo Musci
  • Publication number: 20190358940
    Abstract: An extruded matt foil has at least one layer in which glass beads are uniformly distributed in a polymer matrix with at least one fluoropolymer and at least one further layer. The matt foil has a particularly high UV-resistance, a high weathering resistance and excellent mechanical properties. Therefore, the foil is highly suitable for surface-protection of materials such as polyvinyl chloride (PVC) and for use in high-pressure laminates (HPLs).
    Type: Application
    Filed: December 5, 2017
    Publication date: November 28, 2019
    Applicant: Evonik Röhm GmbH
    Inventors: Claude Guénanten, Helmut Häring, Detlef Birth, Max Conrad, Eric Reinheimer, Günther Dickhaut, Ghirmay Seyoum, Wangelis Karampougioukis, Girolamo Musci
  • Publication number: 20190083977
    Abstract: The present invention is in the field of medical diagnostics and microfluidics and primarily relates to a microfluidic device for the analysis of biological samples. The microfluidic device of the present invention comprises at least one microchannel, the inner surface of which is at least partially coated with a hydrophilic coating. This hydrophilic coating is located on top of the intermediate layer which, in turn, is located between the material of the inner surface of the microchannel and the hydrophilic coating.
    Type: Application
    Filed: March 9, 2017
    Publication date: March 21, 2019
    Applicant: Evonik Roehm GmbH
    Inventors: Ghirmay SEYOUM, Anderea FRUTH, Michael ENDERS
  • Publication number: 20180037776
    Abstract: The present invention relates to peelproof security films made from a poly(meth)acrylate, more particularly from a polymethyl methacrylate, which comprises at most 10 wt % of or no impact modifiers. These films are highly transparent, have good printability qualities, and can be applied without intended break points. The peelproof security films can therefore find use in particular in documents, such as passports, for example, in security labels, such as road tax badges, for example, or for product theft prevention, or as price tags. These security labels are further distinguished by good weathering stability and in particular by especially good UV stability. The present invention relates more particularly to the use of these security labels, which have a thickness of not more than 2 mm, comprise at least 80 wt % of polymethyl methacrylate and contain no impact modification particles.
    Type: Application
    Filed: March 23, 2016
    Publication date: February 8, 2018
    Applicant: Evonik Roehm GmbH
    Inventors: Ghirmay SEYOUM, Haroldo RODRIGUES, Guenther DICKHAUT, Juergen PACHMANN, Detlef BIRTH
  • Patent number: 9630387
    Abstract: The present invention relates to a method for the continuous inline production of coated polymeric substrates or laminates and also to an apparatus for implementing this method.
    Type: Grant
    Filed: June 15, 2012
    Date of Patent: April 25, 2017
    Assignee: Evonik Roehm GmbH
    Inventors: Waldemar Kanzler, Thomas Hasskerl, Ghirmay Seyoum, Patrick Kliem, Werner Krebs, Dieter Foerster, Manfred Dannehl
  • Patent number: 9410043
    Abstract: A reactive mixture for coating mouldings by means of reaction injection moulding, containing at least 40% by weight of (meth)acrylates having at least two double bonds. The reactive mixture contains at least one photoinitiator and at least one thermal initiator. The present invention furthermore describes a coated moulding including a moulding which is obtainable by injection moulding processes and includes at least one polymer selected from polymethyl methacrylate, polymethylmethacrylimide, styrene-acrylonitrile copolymer, styrene-maleic acid copolymer and polymethyl methacrylate copolymers, and a coating which is obtainable by polymerization of (meth)acrylates having at least two double bonds. The coating has an adhesive strength rating of not more than 1 according to the cross hatch test and a decrease in gloss at 20° after a scratch resistance test according to ASTM 1044 (12/05) (applied weight 500 g, number of cycles=100) of not more than 10%.
    Type: Grant
    Filed: July 11, 2012
    Date of Patent: August 9, 2016
    Assignee: Evonik Roehm GmbH
    Inventors: Klaus Schultes, Thorsten Goldacker, Klaus Koralewski, Werner Höβ, Ghirmay Seyoum, Elevtherios Gross, Erwin Felger
  • Patent number: 9062211
    Abstract: A reactive mixture for coating moldings by reaction injection molding includes at least 40% by weight of (meth)acrylates having at least two double bonds. The reactive mixture also includes at least one photoinitiator and at least one thermal initiator. Furthermore, a coated molding includes a molding obtainable by injection molding processes. The molding includes polymethyl methacrylate, polymethylmethacrylimide, styrene-acrylonitrile copolymer, styrene-maleic acid copolymer, polymethyl methacrylate copolymer, or a combination thereof. A coating is obtainable by polymerization of (meth)acrylates having at least two double bonds, the coating having an adhesive strength rating of not more than 1 according to the cross hatch test and a decrease in gloss at 20° after a scratch resistance test according to ASTM 1044 (12/05) (applied weight 500 g, number of cycles=100) of not more than 10%.
    Type: Grant
    Filed: July 11, 2012
    Date of Patent: June 23, 2015
    Assignee: EVONIK ROEHM GmbH
    Inventors: Klaus Schultes, Thorsten Goldacker, Klaus Koralewski, Werner Hoess, Ghirmay Seyoum, Elevtherios Gross, Erwin Felger
  • Publication number: 20140106148
    Abstract: The present invention relates to a method for the continuous inline production of coated polymeric substrates or laminates and also to an apparatus for implementing this method.
    Type: Application
    Filed: June 15, 2012
    Publication date: April 17, 2014
    Applicant: Evonik Roehm GmbH
    Inventors: Waldemar Kanzler, Thomas Hasskerl, Ghirmay Seyoum, Patrick Kliem, Werner Krebs, Dieter Foerster, Manfred Dannehl
  • Publication number: 20130059139
    Abstract: The invention relates to the production of a transparent, weather-resistant barrier film by lamination, extrusion lamination (adhesive lamination, melt lamination or hotmelt lamination) or extrusion coating. The film can also contain a scratch-resistant coating. For this purpose, two or more transparent film composites, which consist in each case of two externally disposed polyolefin or polyester layers which are in each case inorganically coated and glued to the inorganic layer on the inside, are connected to each other. Said composite is laminated with a weather-resistant, transparent film (e.g. PMMA or PMMA polyolefin coextrudate or PMMA polyester coextrudate). The inorganic oxide layers have the property of a high optical transparency while having at the same time a good barrier effect against water vapour and oxygen while the PMMA layer exhibits weather resistance stability.
    Type: Application
    Filed: May 31, 2011
    Publication date: March 7, 2013
    Applicant: Evonik Roehm GmbH
    Inventors: Jochen Ackermann, Claudius Neumann, Ghirmay Seyoum, Florian Schwager
  • Publication number: 20130001825
    Abstract: A reactive mixture for coating mouldings by means of reaction injection moulding, containing at least 40% by weight of (meth)acrylates having at least two double bonds. The reactive mixture contains at least one photoinitiator and at least one thermal initiator. The present invention furthermore describes a coated moulding including a moulding which is obtainable by injection moulding processes and includes at least one polymer selected from polymethyl methacrylate, polymethylmethacrylimide, styrene-acrylonitrile copolymer, styrene-maleic acid copolymer and polymethyl methacrylate copolymers, and a coating which is obtainable by polymerization of (meth)acrylates having at least two double bonds. The coating has an adhesive strength rating of not more than 1 according to the cross hatch test and a decrease in gloss at 20° after a scratch resistance test according to ASTM 1044 (12/05) (applied weight 500 g, number of cycles=100) of not more than 10%.
    Type: Application
    Filed: July 11, 2012
    Publication date: January 3, 2013
    Applicant: Evonik Roehm GmbH
    Inventors: Klaus Schultes, Thorsten Goldacker, Klaus Koralewski, Werner Höss, Ghirmay Seyoum, Elevtherios Gross, Erwin Felger
  • Publication number: 20120296004
    Abstract: The invention relates to an injection moulding machine containing a reactive mixture including at least 40% by weight of (meth)acrylates having at least two double bonds, at least one photoinitiator, and at least one thermal initiator.
    Type: Application
    Filed: July 11, 2012
    Publication date: November 22, 2012
    Applicant: Evonik Roehm GmbH
    Inventors: Klaus SCHULTES, Thorsten Goldacker, Klaus Koralewski, Werner Höß, Ghirmay Seyoum, Elevtherios Gross, Erwin Felger
  • Publication number: 20120288706
    Abstract: A reactive mixture for coating moldings by reaction injection molding includes at least 40% by weight of (meth)acrylates having at least two double bonds. The reactive mixture also includes at least one photoinitiator and at least one thermal initiator. Furthermore, a coated molding includes a molding obtainable by injection molding processes. The molding includes polymethyl methacrylate, polymethylmethacrylimide, styrene-acrylonitrile copolymer, styrene-maleic acid copolymer, polymethyl methacrylate copolymer, or a combination thereof. A coating is obtainable by polymerization of (meth)acrylates having at least two double bonds, the coating having an adhesive strength rating of not more than 1 according to the cross hatch test and a decrease in gloss at 20° after a scratch resistance test according to ASTM 1044 (12/05) (applied weight 500 g, number of cycles=100) of not more than 10%.
    Type: Application
    Filed: July 11, 2012
    Publication date: November 15, 2012
    Applicant: Evonik Roehm GmbH
    Inventors: Klaus SCHULTES, Thorsten Goldacker, Klaus Koralewski, Werner Höß, Ghirmay Seyoum, Elevtherios Gross, Erwin Felger
  • Publication number: 20120021236
    Abstract: The invention relates to a barrier foil, wherein a barrier composite (5) consisting of two carrier foils (3), each of which contains an inorganic barrier (4) (SiOx or AlOx), is combined by lamination or extrusion coating with a weather-resistant protective layer (1), wherein a bonding agent is used as an adhesive layer (2).
    Type: Application
    Filed: April 28, 2010
    Publication date: January 26, 2012
    Applicant: EVONIK ROEHM GMBH
    Inventors: Claudius Neumann, Florian Schwager, Ghirmay Seyoum, Ekkehard Beer
  • Publication number: 20110303277
    Abstract: The invention relates to a barrier film, in which a backing film (4) containing an inorganic barrier (3) (SiOx or AlOx) is combined with a weather-resistant protective layer (1) using lamination or extrusion coating, an adhesion promoter being used as the adhesive layer (2).
    Type: Application
    Filed: January 21, 2010
    Publication date: December 15, 2011
    Applicant: EVONIK ROEHM GmbH
    Inventors: Claudius Neumann, Florian Schwager, Ghirmay Seyoum, Ekkehard Beer
  • Patent number: 7968193
    Abstract: The invention relates to polymerisable compositions obtained as follows: a) reaction of A) between 0.5 and 5 parts by weight of at least one silicon compound of formula (I): SimR1nR2oOrXs with B) between 0.01 and 2.0 parts by weight of water C) between 0 and 4.0 parts by weight of at least one acid; and b) subsequent addition of D) between 0.5 and 5 parts by weight of at least one (meth)acrylate of formula (II), E) between 98.99 and 55 parts by weight of at least one polymerisable, ethylenically unsaturated monomer, different from D) and F) between 0 and 30 parts by weight of at least one polymer and/or copolymer, which is obtained by the polymerisation or copolymerisation of at least one ethylenically unsaturated monomer E). The invention also relates to polymers and laminate glass obtained from the composition and to a method for producing laminate glass.
    Type: Grant
    Filed: February 21, 2003
    Date of Patent: June 28, 2011
    Assignee: Evonik Roehm GmbH
    Inventors: Thomas Hasskerl, Rolf Neeb, Ghirmay Seyoum, Wolffgang Wiebel
  • Publication number: 20100167045
    Abstract: The present invention relates to a reactive mixture for coating mouldings by means of reaction injection moulding, comprising at least 40% by weight of (meth)acrylates having at least two double bonds, the reactive mixture comprising at least one photoinitiator and at least one thermal initiator.
    Type: Application
    Filed: April 17, 2008
    Publication date: July 1, 2010
    Applicant: Evonik Roehm GmbH
    Inventors: Klaus Schultes, Thorsten Goldacker, Klaus Koralewski, Werner Hoess, Ghirmay Seyoum, Elevtherios Gross, Erwin Felger
  • Patent number: 7608306
    Abstract: A process is described for producing mouldings from plastics by coating a moulding on one or more sides with a lacquer system, the lacquer system being composed of a binder or a binder mixture, optionally a solvent or solvent mixture, optionally other additives usual in lacquer systems and optionally a thickener, and use can be made here of polymeric thickeners at from 0 to 20% content and oligomeric thickeners at from 0 to 40% content, in each case based on dry film (components a, c, d, e), from 5 to 500 parts by weight, based on a), of an electrically conductive metal oxide powder with a median primary particle size of from 1 to 80 nm and a percentage degree of aggregation of from 0.01 to 99%, from 5 to 500 parts by weight, based on a), of inert nanoparticles coated [sic] in a manner known per se and the lacquer cured.
    Type: Grant
    Filed: March 2, 2004
    Date of Patent: October 27, 2009
    Assignee: Evonik Degussa GmbH
    Inventors: Thomas Hasskerl, Stipan Katusic, Patrick Becker, Rolf Neeb, Ghirmay Seyoum
  • Publication number: 20080138610
    Abstract: The invention relates to a process for production of foils or sheets composed of thermoplastic with electrically conductive coating by means of the following steps of a process: a) single-side coating of a backing foil composed of a thermoplastic with a lacquer composition based on silicon and comprising inorganic semiconductor particles, b) extrusion of an extrudate of a thermoplastic, c) bringing the coated side of the backing foil and the extrudate of the extruded thermoplastic together in the nip of the polishing stack, d) peeling of the backing foil from the composite, whereupon the coating of the backing foil remains on the extruded thermoplastic, e) if appropriate, cooling of the plastics web to ambient or room temperature. The invention further relates to the extruded and coated foils and sheets, and also to their uses.
    Type: Application
    Filed: February 10, 2006
    Publication date: June 12, 2008
    Applicant: Roehm GmbH
    Inventors: Achim Neuhauser, Gunther Dickhaut-Bayer, Christoph Krohmer, Patrick Becker, Rolf Neeb, Ghirmay Seyoum